readings

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  1. gjcone44

    zs readings before and after rcd.

    anyone come across this before zs at board 0.28. then when measure zs on rcd side on live and neutral, reading of 0.77. from the same earth position.?, ie got a socket a meter away from board earth loop 0.81. measure earth from socket to board its 0.02.
  2. HappyHippyDad

    Increasing Zs readings on a ring as I progress through the house.

    I have just fitted a new consumer unit into a house which previously just had a fuse box BS3036 with no RCD protection. Whilst doing the testing the Zs readings were not as expected. They are around 1Ω throughout the house but at one socket they are 3.7Ω. The customer states this was the socket...
  3. N

    Landis+Gry E100 5253A suspect PV readings

    Hi All, any chance of some advice please...i have a 2kw solar pv system fitted and was being monitored with the old style rotating disk meter....my energy FIT suppler (SSE) changed the old meter to the above (in the title)...now over the last year i have found my bills or direct debt (for...
  4. B

    Meter readings helppp

    Got various types of meters, some that show available balance like KWH available and some that show £££ available, it’s 0.11p for 1 KWH How would I go about converting the KWH to ££ And ££ to KWH So I have a figure for both Thanks
  5. gazdkw82

    Strange voltage readings - broken earth

    Was fixing a broken twin florescent fitting today and came across something I couldn't work out. First thing I did was measure the incoming voltage. At the fitting I measured L-E =190, N-E = 90v. Scratched my head for a minute until I realized the Earth's coming in from the numerous (4) twin...
  6. P

    Varying continuity readings

    Hi all, I am using a Fluke 1662 with fused test leads. I find when doing continuity tests such as R1+R2, as the test button is being held the result fluctuates dramatically. Both increasing and decreasing. Seems to happen on insulation resistance as well however not so much. I also find after...
  7. O

    L-E 199v, N-E 199v ............... real readings

    So these are the readings on a radial (serving the immersion and a socket in the loft) NOT connected to the CU ............. odd I thought - no direct connections between the 2 circuits I have located the issue ........ Just for a bit of light hearted fun - anyone want to guess what caused it?
  8. P

    Strange readings on ze and zs

    Studio flat recently re-wired. Ryfields board with main earth coming in and connects to side of ryfields (sealed unit). Flat’s own head outside has main isolator, from there 25mm tails to inside and then in main switch on DB. With 16mm earth feeding board. Ze at main switch on DB with main...
  9. Gavin John Hyde

    fluctuating readings on a tt rod

    Been at a rural cottage today doing a pre install survey for a EV charger, House is 400 and something years old and situated on a hill with lots of rocky ground, mainly limestone based rocks. Owner tells me the rod is in his own words ' two joined together to make a long one' as he helped bang...
  10. F

    high zs readings on site cabin

    carried out dead testing on new site accommodation,all dead tests were fine however, when I conducted live testing I got high zs redings on lighting circuit 22 ohms, fused spur for heater 21 ohms so I thought maybe its a tt system but when I tested sockets I got a reading of 0.69 ohms ze at...
  11. Jonathan Wilcox

    Measuring component readings

    I'm fixing a turntable and want to know how to test individual components on a circuit board. Can anyone advise me on what are the most important parts to test and how? I have watched a few videos and have figured I need my multimeter on diode mode, wires on pos/neg and reading should be...
  12. N

    Insulation resistance - strange readings

    Im getting some strange reading on a new circuit(ring main) ive installed and i was wondering if anyone else had experienced the following. insulation resistance at 500v on L-N is >500mQ (which is fine) then insulation resistance between N-E starts at 400 then climbs to 500mQ then insulation...
  13. P

    Socket voltage readings

    Hi all, Never seen this before. I am getting a red LED appearing on my socket tester without the socket being switched on, and then a 'No earth' from one socket tester but 'Live Neutral reverse' from another socket tester. I am also getting the following voltages at one of the sockets: Line to...
  14. B

    Multimeter false readings

    Friend had a multimeter, not a very dear one just £30, was testing an outside light and said he tested the whole light inside belled everything out and tested the ballast which has built in ignitor and came to use his multimeter and it’s coming up with weird readings could this be why?
  15. Jamie'

    What to do with high n-n continuity readings

    Hi guys, I'm currently in my last year of my apprenticeship and I think my boss has set me a challenge! I was at a house and got moved a few things around in the kitchen for a new kitchen to be fitted and also upgraded the fuse board so it had RCD protection. Now on one of the rings (ground...
  16. B

    High ze readings. Even higher zs?

    testing a TNS installation today, found a high incoming ze of 1.14ohms, in my head putbthis down to incoming earth issue as all terminations tight, but when I test any subsequent circuit I’m getting much greater zs readings approx 4.0 ohms. I was expecting high earth loops as my incomer was high...
  17. C

    problems with test results

    Hello, Im confused as to why I'm getting a high zs value at the socket but all r1 rn r2 ze is 0.5 but zs is .98 The other problem is a had a rcd won't trip but for some reason when something is plugged in it trips the other rcd. All circuits bell out and test fine so could it be the rcd...
  18. G

    Bizarre Wiring And Readings Through Upstairs Windows

    Hi I don't know if anyone can help, but I'm very grateful to anyone who can provide input. I won't go into the full story, but my windows upstairs appear to have an electrical current running through them. It's only the windows upstairs. They also set off a radio frequency detector. Even if...
    • Gemma
    • Thread
    • readings through upstairs windows wiring
    • Replies: 88
    • Forum: UK Electrical Forum
  19. L

    Head scratcher!! Strange Zs readings

    Evening all, bit of advice needed please. First time posting in this section because I don't really seem to come up against things that baffle me like this. The job is an EICR on a production plant. Main supply to the plant doesn't have a neutral so someone has installed a 3 phase to the phase...
  20. Dannyg8810

    Confused ...IR readings

    anyone shed some light? 100m run of 4mm nyy cable New cable and getting 135meg ohm when testing surely this should be >999 on martindale mft Checked cable and no damage(visual anyway) I know it's well above minimum permitted but still

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